Jamaica's Usain Bolt (second right) wins the men's 100m race during the Diamond League athletics meet at The Stadium in the Queen Elizabeth Olympic Park, London.

The world’s fastest man failed to leave the blocks promptly, but powered through the field at the Diamond League meet. He finished in 9.85 seconds at the stadium where he won three gold medals last year in the London Games.

Michael Rodgers was second in 9.98, and Nesta Carter was third.

The standout performance of the night was by high jumper Bohdan Bondarenko, who threatened the 20-year world record held by Javier Sotomayor.

Despite failing at his only attempt to clear 7 feet, 11 1/2 inches, Bondarenko asked for the bar to be raised to 8-11/4 as he took aim at Sotomayor’s mark of 8-0 1/2. He failed twice but still won at 7-9 3/4.

In the 200, Warren Weir, who won bronze a year ago, edged Jason Young by 0.1 to win in 19.89. Wallace Spearmon was third in 20.18.

Nick Symmonds led a podium sweep for the United States in the 800 with a time of 1:43.67. Duane Solomon and Brandons Jones followed.

Olympic champion Kirani James comfortably won the 400 in 44.65, beating Tony McQuay and Jonathan Borlee.

Zusana Hejnova warmed up for the world championships in Moscow next month by cruising to victory in the 400 hurdles. The Czech won in a world-leading time of 53.07.

SPRINTER FAILED MULTIPLE TESTS

Sprinter Tyson Gay failed more than one drug test this year, recording one of his positives at the U.S. championships in June, where he won the 100 and 200 meters, The Associated Press learned on Friday.

Three people familiar with the case told the AP that Gay had multiple positives this year. One of those people said one positive came at nationals and the U.S. Anti-Doping Agency has notified him of that result.